/* home界面会使用的组件 */
<template>
 <div class="tab-control">
     <!-- 只是几个文字的情况下，就没必要使用插槽了 -->
     <div :key="item" v-for="(item,index) in titles" 
     class="tab-control-item" :class="{active:index === currentIndex}" @click="isActive(index)">
         <span>{{item}}</span>
     </div>
 </div>
</template>

<script>

export default({
    name:'TabControl',
    props:{
        titles:{
            type:Array,
            default(){
                return []
            }
        }
    },
    data(){
        return {
           currentIndex :0 
        }
    },
    methods:{
        isActive(index){
            this.currentIndex=index
            //子传父 自定义事件
            this.$emit('tabClick',index)
        }
    }
})

</script>

<style scoped>
    .tab-control{
        display:flex;
        text-align: center;
        font-size: 15px;
        height: 40px;
        line-height: 40px;
        background-color: #eee;
    }
    .tab-control-item{
        flex:1;  
    }
    .tab-control-item span{
        padding: 5px; 
    }

    .active{
        color: var(--color-high-text)
    }
    .active span{
        border-bottom: 3px solid var(--color-high-text);
    }
</style>
